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REG[80h] Sub-Window Line Address Offset Register 0
Bit 7
Bit 6
REG[81h] Sub-Window Line Address Offset Register 1
n/a
n/a
S1D13706
X31B-G-003-03
In SwivelView 180°, program the start address
= ((desired byte address + (sub-window width × sub-window height × bpp ÷ 8)) ÷ 4) - 1
In SwivelView 270°, program the start address
= (desired byte address + ((sub-window height - 1) × sub-window width × bpp ÷ 8)) ÷ 4
Note
SwivelView 0° and 180° require the panel width to be a multiple of 32 ÷ bpp. Swivel-
View 90° and 270° require the panel height to be a multiple of 32 ÷ bpp. If this is not
possible, a virtual display (one larger than the physical panel size) is required which
does satisfy the above requirements. To create a virtual display, program the sub-win-
dow line address offset to values which are greater than that required for the given dis-
play width.
Bit 5
Bit 4
n/a
These registers indicate the number of dwords per line in the sub-window image.
number of dwords per line = image width ÷ (32 ÷ bpp)
Note
The image width must be a multiple of 32 ÷ bpp.
Bit 3
n/a
n/a
Epson Research and Development
Vancouver Design Center
Bit 2
Bit 1
n/a
Bit 9
Programming Notes and Examples
Issue Date: 01/02/23
Bit 0
Bit 8
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